Maximal values of gravitational drift and drift due to irregular rigidity in integrating floated gyroscopes Topics: DRIFT, FLOTATION, GRAVITATIONAL EFFECTS, GYROSCOPES, DRIFT, GRAVITATIONAL EFFECT, GYROSCOPE...
byKindt, Louis M.; Mullins, Michael E.; Hand, David W.; Kline, Andrew A
The destruction of organic contaminants in waste water for closed systems, such as that of Space Station, is crucial due to the need for recycling the waste water. A co-current upflow bubble column using oxygen as the gas phase oxidant and packed with catalyst particles consisting of a noble metal on an alumina substrate is being developed for this process. The objective of this study is to develop a plug-flow model that will predict the performance of this three phase reactor system in... Topics: GRAVITATIONAL EFFECTS, MICROGRAVITY, CONFERENCES, INDUSTRIES
A gravitational wave is a theoretical fluctuation in the curvature of spacetime caused by the movement of incredibly massive objects. In this animation, two massive black holes orbit each other, creating gravitational waves. Note: This animation shows two black holes orbiting each other, producing gravity waves. Animator: Dana Berry (Skyworks Digital). Writer: Michael D. McClare (HTSI). Topic: HDTV, Black Hole, Astrophysics, Gravitational Waves Source: http://svs.gsfc.nasa.gov/goto?10142
A black hole is a massive object whose gravitational field is so intense that no light (electromagnetic radiation) can escape it. When two orbiting black holes merge, a massive amount of energy is released in the form of jets. Meanwhile, the movement of these massive bodies disturbs the fabric of space-time around them, sending ripples of gravitational waves radiating outward. These waves are predicted by Einstein's theory of general relativity, but have yet to be directly detected. Note: A... Topic: Galaxy, HDTV, Black Hole, Astrophysics, Gravitational Waves Source: http://svs.gsfc.nasa.gov/goto?10140
A pulsar is generally believed to be a rapidly rotating neutron star that emits pulses of radiation (such as x-rays and radio waves) at known regular intervals. A millisecond pulsar is one with a rotational period in the range of 1-10 milliseconds. As the pulsar picks up speed through accretion, it distorts due to subtle changes in the crust. Such slight distortion is enough to produce gravitational waves. Material flowing onto the pulsar surface from its companion star tends to quicken the... Topic: HDTV, Neutron Star, Astrophysics, Gravitational Waves, Pulsar Source: http://svs.gsfc.nasa.gov/goto?10143
This document reports the results of additional efforts for the Rocket Based Combined Cycle (RBCC) rocket-ejector mode research work carried out at the Perm State Propulsion Engineering Research Center in support of NASA s technology development efforts for enabling 3rd generation Reusable Launch Vehicles (RLV). The two tasks conducted under this program build on earlier NASA MSFC funded research program on rocket ejector investigations. The first task continued a systematic investigation of... Topics: FREE CONVECTION, GRAVITATIONAL EFFECTS, CROSS SECTIONS, WATER
Universalization of optimum parameters for dynamic system - applied to maximum payload delivery when body variable mass and restricted jet power moves in gravitational field Topics: DELIVERY, GRAVITATIONAL FIELDS, PAYLOADS, SPACECRAFT MANEUVERS, GRAVITATIONAL FIELD, PAYLOAD,...
A FORMULA FOR THE EXPANSION OF A BOUNDARY LAYER IS CHECKED EXPERIMENTALLY, USING CIRCULAR AND PLANE JETS. A NEW FORMULA FOR CALCULATING THE BOUNDARIES OF THE FLOW CORE IS PROPOSED WHICH, IN COMBINATION WITH THE MOMENTUM EQUATION, CAN BE USED TO CALCULATE THE BOUNDS OF A JET BOUNDARY LAYER AT THE INITIAL PORTION OF THE JET. AN ANALYTICAL EXPRESSION DESCRIBING THE BEHAVIOR OF THE AXIAL VELOCITY OF THE JET BEYOND ITS INITIAL PORTION IS OBTAINED. Topics: COSMIC GASES, COSMIC RAYS, INTERGALACTIC MEDIA, MAGNETIC FIELDS, GRAVITATIONAL EFFECTS,...
Construction and use of horizontal pendulums in geophysical studies - influence of terrestrial tides on geophysical measurements Topics: CONSTRUCTION, PENDULUM APPARATUS, TIDE, GEOPHYSICAL OBSERVATORIES, GEOPHYSICS, GRAVITATIONAL...
The requirements of projected space programs (1985-1995) for transportation vehicles more advanced than the space shuttle are discussed. Several future program options are described and their transportation needs are analyzed. Alternative systems approaches to meeting these needs are presented. Topics: GRAVITATIONAL EFFECTS, GRAVITATIONAL FIELDS, SPACE FLIGHT, SPACE MECHANICS, KEPLER LAWS, ORBITAL...
One-impulse optimum energy flights between Keplerian orbits in gravitational field of sun taking into account effect of light pressure Topics: FLIGHT OPTIMIZATION, KEPLER LAW, LIGHT PRESSURE, SOLAR GRAVITATIONAL EFFECT, GRAVITATIONAL EFFECTS,...
Gravitational and radiation effects on unicellular organisms and microscopic techniques for observing living cells Topics: AMOEBA, RADIATION EFFECTS, ULTRAVIOLET MICROSCOPY, BIOLOGICAL CELL, GRAVITATIONAL EFFECT,...
The Laser Interferometer Space Antenna (LISA) consists of three spacecraft orbiting the sun in a triangular configuration. The LISA mission will study the mergers of supermassive black holes, test Einstein's theory of general relativity, probe the early Universe, and search for gravitational waves. As these passing waves ripple space and time, they will alter the lasers shining between the spacecraft, offering a different perspective on the Universe. LISA is scheduled for launch in 2015. Note:... Topics: HDTV, Astrophysics, Gravitational Waves, LISA, Universe, What -- Sun Source: http://svs.gsfc.nasa.gov/goto?10127
The Laser Interferometer Space Antenna (LISA) consists of three spacecraft orbiting the sun in a triangular configuration. The LISA mission will study the mergers of supermassive black holes, test Einstein's theory of general relativity, probe the early universe, and search for gravitational waves. As these passing waves ripple space and time, they will alter the laser beams shining between the spacecraft, offering a different perspective on the Universe. LISA is scheduled for launch in 2015.... Topics: HDTV, Astrophysics, Gravitational Waves, LISA, Universe, What -- Sun Source: http://svs.gsfc.nasa.gov/goto?10126
Trevor Stewart - I made these five videos trying to explain what happened to my dog and myself. Some of these videos were removed from YouTube & Disclose.tv, but I still have my videos on-line. Enjoy the images ibotts - Dreamland Topics: trevor stewart, ibotts, littlebugg, Dreamland, anti-gravitational crafts, ufos
These are the five videos Trevor uploaded to YouTube, Disclose.tv between 2012-12-02 to 2013-01-20. Some of my videos were removed from YouTube and all my videos were removed from Disclose.tv (littlebugg) Thankfully I still have videos on-line. Topics: trevor stewart, ibotts, Dreamland, littlebugg, anti-gravitational crafts
THE QUESTION OF THE EXISTENCE AND METHODS OF COMMUNICATING WITH EXTRATERRESTRIAL CIVILIZATIONS ARE ANALYZED BY SEVERAL U.S.S.R. SCIENTISTS. Topics: GEOIDS, GRAVITATIONAL FIELDS, OCEANS, ALTIMETERS, GEOS 3 SATELLITE, SATELLITE TRACKING
The Laser Interferometer Space Antenna (LISA) consists of three spacecraft orbiting the sun in a triangular configuration. The LISA mission will study the mergers of supermassive black holes, test Einstein's theory of general relativity, probe the early universe, and search for gravitational waves. As these passing waves ripple space and time, they will alter the laser beams shining between the spacecraft, offering a different perspective on the universe. LISA is scheduled for launch in 2015.... Topics: HDTV, Astrophysics, Gravitational Waves, LISA, Universe, What -- Sun Source: http://svs.gsfc.nasa.gov/goto?10125
When conducting physical science research in space, the smallest vibration or disturbance can disrupt sensitive experiments. Back in the 1990s we developed an instrument, the Space Acceleration Measurement System (SAMS) that flew on the shuttle to monitor the vibration environment - but it wasn't very flexible. It could only measure vibrations for three users and only at fixed frequency ranges, and it had to be disassembled after each two-week mission to be readied for reuse. Then the... Topics: GALACTIC CLUSTERS, RED SHIFT, CHRONOLOGY, STELLAR ENVELOPES, GRAVITATIONAL LENSES
byShan, Hong-Zhang; Smith, Warren; Oliker, Leonid; Biswas, Rupa
Computational grids have the potential for solving large-scale scientific problems using heterogeneous and geographically distributed resources. However, a number of major technical hurdles must be overcome before this potential can be realized. One problem that is critical to effective utilization of computational grids is the efficient scheduling of jobs. This work addresses this problem by describing and evaluating a grid scheduling architecture and three job migration algorithms. The... Topics: PHOTONICS, AEROSPACE MEDICINE, BONE DEMINERALIZATION, GRAVITATIONAL PHYSIOLOGY, MICROSCOPY
byBlack, Jonathan T.; Leifer, Jack; DeMoss, Joshua A.; Walker, Eric N.; Belvin, W. Keit
Solar sails are among the most studied members of the ultra-lightweight and inflatable (Gossamer) space structures family due to their potential to provide propellentless propulsion. They are comprised of ultra-thin membrane panels that, to date, have proven very difficult to experimentally characterize and numerically model due to their reflectivity and flexibility, and the effects of gravity sag and air damping. Numerical models must be correlated with experimental measurements of sub-scale... Topics: FLAMES, VORTICES, EXTINCTION, DATA BASES, GRAVITATIONAL EFFECTS, MICROGRAVITY
A physics 101 talk about Black Holes and Gravitational Fields. An excerpt from Physics by Tipler is included in this assignment Topics: Physics 101, Black Holes and Gravitational Fields Assignment, Pythagoras Publishing
The transonic Navier-Stokes code was used to simulate flow fields about isolated wings for workshop wind-tunnel and free-air cases using the thin-layer Reynolds-averaged Navier-Stokes equations. An implicit finite-difference scheme based on a diagonal version of the Beam-Warming algorithm was used to integrate the governing equations. A zonal grid approach was used to allow efficient grid refinement near the wing surface. The flow field was sensitive to the turbulent transition model, and flow... Topics: GRAVIMETRY, GRAVITATIONAL FIELDS, GRAVITY ANOMALIES, GROUND STATIONS, GEOPHYSICS, JAMAICA, MOUNTAINS
THE CONTENT AND SYNTHESIS RATE OF PHOSPHOLIPIDS IN HEART, LIVER, BRAIN AND KIDNEY, AS WELL AS THE CONTENT OF CYTOCHROMES B5 AND P450 IN THE LIVER OF THIAMINE-DEFICIENT RATS WAS INVESTIGATED. Topics: ALGORITHMS, GRAVITATIONAL CONSTANT, SATELLITE ORIENTATION, COORDINATES, MATHEMATICAL MODELS, TABLES...
FUSE observations of four stars in the line of sight to the Cyg OB1 IR-detected superbubble have been analyzed for high-velocity features in the O VI interstellar lines, which might be attributed to the shock structure of the superbubble. Multiple components were detected in the spectra of all four stars, with a velocity range of -85 kilometers per second to 29 kilometers per second. As many as four separate velocity components were identified in each spectrum, implying multiple shock... Topics: HUBBLE CONSTANT, X RAY ASTRONOMY, BIBLIOGRAPHIES, QUASARS, GRAVITATIONAL LENSES
The acoustic transfer functions of low frequency (below 3500 Hz) noise through aircraft turbines were investigated. Model test results were compared with theoretical predictions in order to assess the validity of the theory. Component tests were conducted on both high pressure and low pressure model turbines. The influence of inlet temperature and turbine speed attenuation was evaluated, while the effects of turbine pressure ratio, blade-row choking, and additional downstream stages were... Topics: GRAVITY GRADIOMETERS, LUNAR GRAVITATIONAL EFFECTS, TIDES, CORRELATION, CRUSTAL FRACTURES, MOONQUAKES
The experience in the design and analysis of aircraft wheels and brakes, brake systems, brake control systems, and antiskid systems is summarized. The static and fatigue strength of aircraft wheels, calculation of brake service life, brake dynamics, techniques for increasing brake energy absorption capacity, and design of the basic antiskid system elements are examined. Topics: FLIGHT MECHANICS, ORBITAL MECHANICS, SATELLITE DESIGN, GRAVITATIONAL EFFECTS, PERTURBATION THEORY
Peter G. Bergmann The Riddle of Gravitation John Murray London 1968 Acrobat 7 Pdf 9.06 Mb. Scanned by artmisa using Canon DR2580C + flatbed option Topics: Physics, Astronomy, General Relativity, Event Horizon, Schwarzschild, Minkowski, Gravitational Waves
The summer program is summarized. The reports presented concern (1) general aviation components, (2) general aviation environment, (3) community perspective, and (4) transportation and general aviation in Virginia. Topics: ATTITUDE (INCLINATION), THEOREMS, VECTORS (MATHEMATICS), CLASSICAL MECHANICS, GRAVITATIONAL...
Animal studies to determine hypoxia effect on central nervous system disorders during gravitational stress Topics: ANIMALS, ANIMAL STUDY, GRAVITATIONAL EFFECT, HYPOXIA, BRAIN, CATS, CENTRAL NERVOUS SYSTEM,...
Magnetic field equilibrium configurations in infinite conductive fluid subjected to uniform gravitational field Topics: CONDUCTIVITY, GRAVITATIONAL FIELD, MAGNETIC FIELD, EQUILIBRIUM, FLUIDS, GRAVITATIONAL FIELDS,...
A generalized mathematical model is investigated of sloshing dynamics for dewar containers, partially filled with a liquid of cryogenic superfluid helium 2, driven by both gravity gradient and jitter accelerations applicable to two types of scientific spacecrafts, which are eligible to carry out spinning motion and/or slew motion to perform scientific observations during normal spacecraft operation. Two examples are given for the Gravity Probe-B (GP-B) with spinning motion, and the Advanced... Topics: METASTABLE STATE, HETEROGENEITY, GRAVITATIONAL EFFECTS, DECOMPOSITION, BINARY DATA, RELAXATION...
The role played by advanced technology is illustrated with respect to the anticipated era of discovery and exploration (in space): how bold new exploration initiatives may or may not be enabled. Enabling technology makes the mission feasible. To be truly enabling, however, the technology must not only render the proposed mission technically feasible, but also make it viable economically; that is, low enough in cost (relative to the economy supporting it) that urgent national need is not... Topics: CELLS (BIOLOGY), SECRETIONS, ACTIVITY (BIOLOGY), BONES, CULTURE TECHNIQUES, IMMUNE SYSTEMS,...
bySwartz, William H.; Lloyd, Steven A.; DeMajistre, Rober
A quantitative understanding of photolysis rate coefficients (or ''j-values'') is essential to determining the photochemical reaction rates that define ozone loss and other crucial processes in the atmosphere. j-Values can be calculated with radiative transfer models, derived from actinic flux observations, or inferred from trace gas measurements. The principal objective of this study is to cross-validate j-values from the Composition and Photodissociative Flux Measurement (CPFM) instrument... Topics: PERTURBATION, GRAVITATIONAL FIELDS, LOW THRUST PROPULSION, SENSORY PERCEPTION, DRAG REDUCTION,...
During the early history of the solar system, it is likely that the outer planets changed their distance from the sun, and hence, their influence on the asteroid belt evolved with time. The gravitational influence of Jupiter and Saturn on the orbital evolution of asteroids in the outer asteroid belt was calculated. The results show that the sweeping of mean motion resonances associated with planetary migration efficiently destabilizes orbits in the outer asteroid belt on a time scale of 10... Topics: CRYOGENICS, ATTITUDE CONTROL, BUBBLES, CRYOGENIC EQUIPMENT, VIBRATION, ROTATION, GRAVITATIONAL...